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annotate org.eclipse.core.databinding.observable/src/org/eclipse/core/databinding/observable/map/ObservableMap.d @ 95:6208d4f6a277

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Added trees for databinding.beans and observable
author Frank Benoit <benoit@tionex.de>
date Tue, 21 Apr 2009 10:55:51 +0200
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children b74ac5dfcc06
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1 /*******************************************************************************
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2 * Copyright (c) 2006, 2007 IBM Corporation and others.
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3 * All rights reserved. This program and the accompanying materials
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4 * are made available under the terms of the Eclipse Public License v1.0
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5 * which accompanies this distribution, and is available at
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6 * http://www.eclipse.org/legal/epl-v10.html
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7 *
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8 * Contributors:
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9 * IBM Corporation - initial API and implementation
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10 * Brad Reynolds - bug 164653
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11 * Matthew Hall - bug 245183
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12 *******************************************************************************/
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13
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14 package org.eclipse.core.databinding.observable.map;
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15
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16 import java.util.Collection;
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17 import java.util.Map;
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18 import java.util.Set;
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19
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20 import org.eclipse.core.databinding.observable.AbstractObservable;
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21 import org.eclipse.core.databinding.observable.ObservableTracker;
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22 import org.eclipse.core.databinding.observable.Realm;
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23
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24 /**
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25 *
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26 * <p>
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27 * This class is thread safe. All state accessing methods must be invoked from
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28 * the {@link Realm#isCurrent() current realm}. Methods for adding and removing
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29 * listeners may be invoked from any thread.
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30 * </p>
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31 * @since 1.0
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32 */
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33 public class ObservableMap : AbstractObservable , IObservableMap {
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34
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35 protected Map wrappedMap;
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36
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37 private bool stale = false;
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38
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39 /**
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40 * @param wrappedMap
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41 */
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42 public this(Map wrappedMap) {
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43 this(Realm.getDefault(), wrappedMap);
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44 }
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45
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46 /**
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47 * @param realm
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48 * @param wrappedMap
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49 */
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50 public this(Realm realm, Map wrappedMap) {
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51 super(realm);
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52 this.wrappedMap = wrappedMap;
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53 }
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54
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55 public synchronized void addMapChangeListener(IMapChangeListener listener) {
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56 addListener(MapChangeEvent.TYPE, listener);
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57 }
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58
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59 public synchronized void removeMapChangeListener(IMapChangeListener listener) {
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60 removeListener(MapChangeEvent.TYPE, listener);
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61 }
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62
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63 protected void getterCalled() {
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64 ObservableTracker.getterCalled(this);
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65 }
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66
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67 protected void fireMapChange(MapDiff diff) {
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68 checkRealm();
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69
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70 // fire general change event first
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71 super.fireChange();
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72
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73 fireEvent(new MapChangeEvent(this, diff));
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74 }
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75
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76 public bool containsKey(Object key) {
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77 getterCalled();
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78 return wrappedMap.containsKey(key);
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79 }
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80
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81 public bool containsValue(Object value) {
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82 getterCalled();
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83 return wrappedMap.containsValue(value);
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84 }
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85
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86 public Set entrySet() {
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87 getterCalled();
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88 return wrappedMap.entrySet();
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89 }
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90
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91 public Object get(Object key) {
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92 getterCalled();
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93 return wrappedMap.get(key);
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94 }
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95
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96 public bool isEmpty() {
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97 getterCalled();
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98 return wrappedMap.isEmpty();
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99 }
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100
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101 public Set keySet() {
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102 getterCalled();
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103 return wrappedMap.keySet();
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104 }
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105
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106 public int size() {
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107 getterCalled();
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108 return wrappedMap.size();
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109 }
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110
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111 public Collection values() {
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112 getterCalled();
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113 return wrappedMap.values();
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114 }
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115
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116 /**
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117 * Returns the stale state. Must be invoked from the current realm.
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118 *
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119 * @return stale state
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120 */
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121 public bool isStale() {
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122 checkRealm();
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123 return stale;
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124 }
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125
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126 /**
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127 * Sets the stale state. Must be invoked from the current realm.
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128 *
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129 * @param stale
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130 * The stale state to set. This will fire a stale event if the
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131 * given bool is true and this observable set was not already
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132 * stale.
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133 */
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134 public void setStale(bool stale) {
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135 checkRealm();
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136 bool wasStale = this.stale;
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137 this.stale = stale;
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138 if (!wasStale && stale) {
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139 fireStale();
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140 }
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141 }
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142
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143 public Object put(Object key, Object value) {
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144 throw new UnsupportedOperationException();
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145 }
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146
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147 public Object remove(Object key) {
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148 throw new UnsupportedOperationException();
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149 }
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150
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151 public void clear() {
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152 throw new UnsupportedOperationException();
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153 }
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154
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155 public void putAll(Map arg0) {
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156 throw new UnsupportedOperationException();
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157 }
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158
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159 public synchronized void dispose() {
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160 super.dispose();
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161 }
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162
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163 public override equals_t opEquals(Object obj) {
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164 getterCalled();
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165
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166 if (obj is this)
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167 return true;
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168 if (obj is null)
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169 return false;
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170 if (getClass() is obj.getClass()) {
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171 return wrappedMap.equals((cast(ObservableMap) obj).wrappedMap);
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172 }
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173
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174 return wrappedMap.equals(obj);
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175 }
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176
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177 public override hash_t toHash() {
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178 getterCalled();
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179
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180 return wrappedMap.hashCode();
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181 }
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182 }